SAP-C02 第 408 题
题目
An e-commerce company is revamping its IT infrastructure and is planning to use AWS services. The company’s CIO has asked a solutions architect to design a simple, highly available, and loosely coupled order processing application. The application is responsible for receiving and processing orders before storing them in an Amazon DynamoDB table. The application has a sporadic traffic pattern and should be able to scale during marketing campaigns to process the orders with minimal delays. Which of the following is the MOST reliable approach to meet the requirements?
中文翻译:
一家电子商务公司正在改造其 IT 基础设施并计划使用 AWS 服务。该公司的 CIO 要求解决方案架构师设计一个简单、高度可用且松散耦合的订单处理应用程序。该应用程序负责接收和处理订单,然后将其存储到 Amazon DynamoDB 表中。该应用程序具有零星的流量模式,并且应该能够在营销活动期间进行扩展,以最小的延迟处理订单。以下哪项是满足要求最可靠的方法?
选项
A. Receive the orders in an Amazon EC2-hosted database and use EC2 instances to process them.
中文翻译:
在 Amazon EC2 托管的数据库中接收订单并使用 EC2 实例来处理它们。
B. Receive the orders in an Amazon SQS queue and invoke an AWS Lambda function to process them.
中文翻译:
接收 Amazon SQS 队列中的订单并调用 AWS Lambda 函数来处理它们。
C. Receive the orders using the AWS Step Functions program and launch an Amazon ECS container to process them.
中文翻译:
使用 AWS Step Functions 程序接收订单并启动 Amazon ECS 容器来处理它们。
D. Receive the orders in Amazon Kinesis Data Streams and use Amazon EC2 instances to process them.
中文翻译:
在 Amazon Kinesis Data Streams 中接收订单并使用 Amazon EC2 实例来处理它们。
答案
B
解析
正确答案:B 解析: 本题应选择 B。 正确选项: B. 接收 Amazon SQS 队列中的订单并调用 AWS Lambda 函数来处理它们。 选择理由: 该选项最直接地满足题干中的关键约束。做 SAP-C02 题目时,需要同时对照题干里的限定词,例如最高性能、最低运维开销、成本效益、可靠性、可扩展性、安全性、RTO/RPO、合规要求等。本题相关考点主要包括:Lambda、DynamoDB、EC2、Kinesis、SQS、Step F...